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- W2003475831 abstract "We introduce new nonvariational orbital optimization schemes for the antisymmetric product of one-reference orbital geminal (AP1roG) wave function (also known as pair-coupled cluster doubles) that are extensions to our recently proposed projected seniority-two (PS2-AP1roG) orbital optimization method [ J. Chem. Phys. 2014 , 140 , 214114 )]. These approaches represent less stringent approximations to the PS2-AP1roG ansatz and prove to be more robust approximations to the variational orbital optimization scheme than PS2-AP1roG. The performance of the proposed orbital optimization techniques is illustrated for a number of well-known multireference problems: the insertion of Be into H2, the automerization process of cyclobutadiene, the stability of the monocyclic form of pyridyne, and the aromatic stability of benzene." @default.
- W2003475831 created "2016-06-24" @default.
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- W2003475831 date "2014-10-13" @default.
- W2003475831 modified "2023-10-13" @default.
- W2003475831 title "Nonvariational Orbital Optimization Techniques for the AP1roG Wave Function" @default.
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